JPH0520879B2 - - Google Patents

Info

Publication number
JPH0520879B2
JPH0520879B2 JP59231413A JP23141384A JPH0520879B2 JP H0520879 B2 JPH0520879 B2 JP H0520879B2 JP 59231413 A JP59231413 A JP 59231413A JP 23141384 A JP23141384 A JP 23141384A JP H0520879 B2 JPH0520879 B2 JP H0520879B2
Authority
JP
Japan
Prior art keywords
lighting
electrode
bright spot
arc tube
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP59231413A
Other languages
Japanese (ja)
Other versions
JPS61110996A (en
Inventor
Makoto Yasuda
Hisashi Myashita
Seiichi Murayama
Yoji Arai
Fujio Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP59231413A priority Critical patent/JPS61110996A/en
Priority to DE19853539119 priority patent/DE3539119A1/en
Priority to US06/795,268 priority patent/US4803406A/en
Publication of JPS61110996A publication Critical patent/JPS61110996A/en
Publication of JPH0520879B2 publication Critical patent/JPH0520879B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/2881—Load circuits; Control thereof
    • H05B41/2882—Load circuits; Control thereof the control resulting from an action on the static converter
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2928—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/382—Controlling the intensity of light during the transitional start-up phase
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/382—Controlling the intensity of light during the transitional start-up phase
    • H05B41/388—Controlling the intensity of light during the transitional start-up phase for a transition from glow to arc
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は高圧放電灯点灯装置に係り、特に点灯
初期に電極輝点を正常位置に保つたのち、高周波
点灯あるいは直流点灯に切換えるための高圧放電
灯点灯装置に関するものである。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a high-pressure discharge lamp lighting device, and particularly to a high-pressure discharge lamp lighting device for maintaining an electrode bright spot in a normal position at the initial stage of lighting and then switching to high-frequency lighting or DC lighting. This invention relates to an electric light lighting device.

〔発明の背景〕[Background of the invention]

計測関係で用いる高圧放電灯は、光出力の脈動
がないことが望ましく、高周波電源や直流電源に
よつて点灯することが多い。この場合、電極輝点
を電極先端の正常位置に生じさせるために、特願
昭58−72892号に記載されているように、点灯初
期には低周波の交流点灯を行つていた。高圧放電
灯の正常点灯時における発光管の状態は第４図ａ
に示すように、電極１の先端にそれぞれ輝点２を
形成しその間に放電プラズマ３を維持している。
上記特願昭58−72892号は電極輝点の形状につい
て全く考慮していないが、正常な電極輝点の形状
は第４図ｂに示すように、電極１の先端部全体を
蔽うように電極輝点２が形成されており、このよ
うな状態では放電プラズマ３が安定している。こ
れに対して第４図ｃに示すように電極輝点２′が
微小な状態で電極１の先端の一部に形成される場
合があることが判つた。上記微小な電極輝点２′
は電極１の先端を動き廻り、このため放電プラズ
マ３′も動き、光出力がゆらぐという現象が生じ
る。上記のような光出力のゆらぎは計測分野で用
いる場合に致命的な欠点となり、その対策が必要
である。 It is desirable that high-pressure discharge lamps used for measurement have no pulsation in light output, and are often turned on by a high-frequency power source or a DC power source. In this case, in order to produce an electrode bright spot at the normal position of the electrode tip, low frequency alternating current lighting was performed at the initial stage of lighting, as described in Japanese Patent Application No. 72892/1983. Figure 4a shows the state of the arc tube during normal lighting of a high-pressure discharge lamp.
As shown in FIG. 1, bright spots 2 are formed at the tips of electrodes 1, and discharge plasma 3 is maintained between them.
The above-mentioned Japanese Patent Application No. 58-72892 does not take into account the shape of the electrode bright spot at all, but the normal shape of the electrode bright spot is as shown in Figure 4b, where the electrode covers the entire tip of the electrode 1. A bright spot 2 is formed, and the discharge plasma 3 is stable in this state. On the other hand, as shown in FIG. 4c, it has been found that there are cases in which a small electrode bright spot 2' is formed at a part of the tip of the electrode 1. The minute electrode bright spot 2'
moves around the tip of the electrode 1, and therefore the discharge plasma 3' also moves, causing a phenomenon in which the light output fluctuates. Fluctuations in the optical output as described above are a fatal drawback when used in the measurement field, and countermeasures are required.

〔発明の目的〕[Purpose of the invention]

本発明は、高圧放電灯の発光位置がゆらぐこと
なく、極めて安定した光出力を得ることができる
放電灯点灯装置を得ることを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a discharge lamp lighting device that can obtain extremely stable light output without fluctuations in the light emission position of a high-pressure discharge lamp.

〔発明の概要〕[Summary of the invention]

一般にメタルハライドランプ等の高圧放電灯で
は、点灯後発光管の温度が上昇し、封入物が所定
の蒸気圧に達するのに時間を要する。交流点灯を
行つて電極輝点が電極先端に移動したのち、上記
電極輝点の形状について詳細に観察した。その結
果つぎのようなことが判明した。第１に交流点灯
の初期では第４図ｂのように必ず拡がつた正常な
電極輝点形状になつていること。第２に点灯によ
つて発光管温度が上昇し封入物の蒸気圧が高くな
つてくると、第４図ｃに示すように微小な電極輝
点形状となり、光出力が不安定になること。第３
に正常な電極輝点から微小な電極輝点に移行する
のは必ず電極の極性が反転するときであり、極性
の反転がない限り上記電極輝点の形状は変化しな
いこと。上記の各項から交流点灯を発光管封入物
の蒸気圧が高くなる前に終えることが重要である
といえる。このような点灯装置を構成することに
より、正常な電極輝点形状を保つことが可能とな
り、それによつて安定な光出力が得られる。すな
わち、本発明による高圧放電灯点灯装置は、点灯
初期に低周波交流点灯を行い、定常時に高周波交
流点灯あるいは直流点灯を行う高圧放電灯点灯装
置において、高圧放電灯が定常状態に達する前の
所定時間後か、あるいは所定特性値の少なくとも
一つを検知後、低周波交流点灯から高周波交流点
灯あるいは直流点灯に切換える手段を備えたこと
により、安定した光出力を得るようにしたもので
ある。 Generally, in a high-pressure discharge lamp such as a metal halide lamp, the temperature of the arc tube rises after lighting, and it takes time for the filled material to reach a predetermined vapor pressure. After AC lighting was performed and the electrode bright spot moved to the tip of the electrode, the shape of the electrode bright spot was observed in detail. As a result, the following was found. First, at the beginning of AC lighting, the electrode always has a normal bright spot shape that expands as shown in FIG. 4b. Second, when the temperature of the arc tube rises due to lighting and the vapor pressure of the enclosed substance becomes high, the electrode becomes a minute bright spot shape as shown in FIG. 4c, and the light output becomes unstable. Third
The transition from a normal electrode bright spot to a minute electrode bright spot is always when the polarity of the electrode is reversed, and the shape of the electrode bright spot does not change unless the polarity is reversed. From the above points, it can be said that it is important to finish AC lighting before the vapor pressure of the arc tube filler increases. By configuring such a lighting device, it is possible to maintain a normal electrode bright spot shape, thereby obtaining stable light output. That is, the high-pressure discharge lamp lighting device according to the present invention performs low-frequency AC lighting in the initial stage of lighting, and performs high-frequency AC lighting or DC lighting during steady state. A stable light output is obtained by providing means for switching from low frequency AC lighting to high frequency AC lighting or DC lighting after a period of time or after detecting at least one of the predetermined characteristic values.

〔発明の実施例〕[Embodiments of the invention]

つぎに本発明の実施例を図面とともに説明す
る。第１図は本発明による高圧放電灯点灯装置の
第１実施例を示す構成図、第２図は本発明の第２
実施例を示す構成図、第３図は本発明の第３実施
例を示す構成図である。第１図に示すように第１
実施例は、直流主電源部１１と低周波電源部１２
と、リレー１３、および該リレー１３を所定の時
間に動作させるためのタイマ１４とを有し、直流
主電源部１１、低周波電源部１２およびタイマ１
４を制御する制御部１５は、上記直流主電源部１
１、低周波電源部１２およびタイマ１４を動作状
態にする機能をもつている。上記直流主電源部１
１は通常直流電源と電流制限回路からなり、上記
電流制限回路には定電流回路を用いるのがよい。
１６はメタルハライドランプの発光管である。 Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing a first embodiment of a high-pressure discharge lamp lighting device according to the present invention, and FIG.
FIG. 3 is a block diagram showing a third embodiment of the present invention. As shown in Figure 1, the first
The embodiment includes a DC main power supply section 11 and a low frequency power supply section 12.
, a relay 13, and a timer 14 for operating the relay 13 at a predetermined time.
The control unit 15 that controls the DC main power supply unit 1
1. It has a function of putting the low frequency power supply unit 12 and timer 14 into operation. Above DC main power supply section 1
1 usually consists of a DC power supply and a current limiting circuit, and it is preferable to use a constant current circuit as the current limiting circuit.
16 is an arc tube of a metal halide lamp.

上記高圧放電灯点灯装置はつぎのように動作す
る。制御部１５により直流主電源部１１、低周波
電源部１２およびタイマ１４を動作状態にする。
上記低周波電源部１２の放電起動手段である高電
圧発生回路により高電圧を発生させてメタルハラ
イドランプの発光管１６を起動し、低周波電源部
１２により低周波交流放電を行う。この間に電極
輝点は電極先端の正常な位置に生じる。その後、
タイマ１４によりリレー１３を働かせ、電流を直
流主電源部１１の方に切換える。一般に封入物や
発光管形状が同一に作られた高圧放電灯では、封
入物が所定の圧力に達し定常点灯状態に到達する
のに要する時間は一定であり、タイマ１４はこの
時間よりも短く設定されている。本実施例によれ
ば、電極輝点は正常位置に正常形状で生じ、安定
な放電が得られる。特に計測用光源などへ応用す
る場合には光出力を極めて安定させることが可能
である。なお本実施例では、放電起動手段が低周
波電源部１２に設けられているが、直流主電源部
１１の中に設けることもできる。その場合はリレ
ー１３によつて最初に直流主電源部１１をメタル
ハライドランプの発光管１６に接続し、放電が起
動したのち低周波電源部１２に切換える。それ以
後の動作は前記した通りである。また上記リレー
１４に電子回路を用いて良いことは勿論である。 The above-mentioned high pressure discharge lamp lighting device operates as follows. The control unit 15 puts the DC main power supply unit 11, low frequency power supply unit 12, and timer 14 into operation.
A high voltage generating circuit, which is a discharge starting means of the low frequency power supply section 12, generates a high voltage to start the arc tube 16 of the metal halide lamp, and the low frequency power supply section 12 performs a low frequency alternating current discharge. During this time, an electrode bright spot appears at the normal position of the electrode tip. after that,
The timer 14 activates the relay 13 to switch the current to the DC main power supply section 11. In general, in high-pressure discharge lamps that have the same filling material and arc tube shape, the time required for the filling material to reach a predetermined pressure and reach a steady lighting state is constant, and the timer 14 is set to be shorter than this time. has been done. According to this embodiment, the electrode bright spot is generated in a normal position and in a normal shape, and a stable discharge can be obtained. Especially when applied to a measurement light source, it is possible to make the light output extremely stable. In this embodiment, the discharge starting means is provided in the low frequency power supply section 12, but it may also be provided in the DC main power supply section 11. In that case, the direct current main power supply section 11 is first connected to the arc tube 16 of the metal halide lamp by the relay 13, and after discharge is started, it is switched to the low frequency power supply section 12. The subsequent operations are as described above. Further, it goes without saying that an electronic circuit may be used for the relay 14.

本発明の第２実施例を示す第２図において、制
御部２１により直流電源部２２および始動用高電
圧発生回路２５を動作状態にする。メタルハライ
ドランプの発光管２６が点灯すると、上記制御部
２１からの信号により極性反転回路２３が一定の
周波数で動作し、メタルハライドランプの発光管
２６は低周波の交流点灯を行う。これによつて電
極輝点は正常位置に形成される。点灯後、発光管
２６のランプ電圧は、上記発光管２６内の封入物
が蒸発するため徐々に上昇し定常状態のランプ電
圧に達する。ランプ電圧検知回路２４によつて定
常状態のランプ電圧よりも低い、ある一定のラン
プ電圧に達したことを検知し、なおかつ所定の極
性である場合に、上記制御部２１を通して極性反
転回路２３の動作を停止させる。以降、上記発光
管２６は直流電源部２２により安定した光出力の
点灯状態を継続する。 In FIG. 2 showing a second embodiment of the present invention, a control section 21 puts a DC power supply section 22 and a starting high voltage generation circuit 25 into an operating state. When the arc tube 26 of the metal halide lamp is lit, the polarity reversing circuit 23 operates at a constant frequency in response to a signal from the control section 21, and the arc tube 26 of the metal halide lamp performs low frequency alternating current lighting. As a result, the electrode bright spot is formed at a normal position. After lighting, the lamp voltage of the arc tube 26 gradually rises to reach a steady state lamp voltage because the filling inside the arc tube 26 evaporates. When the lamp voltage detection circuit 24 detects that a certain lamp voltage lower than the steady state lamp voltage has been reached, and the polarity is a predetermined polarity, the polarity reversing circuit 23 is activated through the control section 21. to stop. Thereafter, the arc tube 26 continues to be lit with stable light output by the DC power supply section 22.

本発明の第３実施例は、第３図に示すように、
制御部２１により直流電源部２２および始動用高
電圧発生回路２５を動作状態にし、メタルハライ
ドランプの発光管２６が点灯すると、制御部２１
からの信号により極性反転回路２３が一定の周波
数で動作し、上記発光管２６は低周波の交流点灯
を行う。点灯後、上記発光管２６内の封入物が蒸
発して発光するためその光強度は徐々に強くな
り、最後に定常状態の光強度に達する。レンズ２
７を介して受光器２８により上記発光管２６の光
強度をモニタし、光強度が定常状態の光強度より
も低い所定の強度に達したことを検知すると制御
部２１に信号を送り、上記制御部２１は電極が所
定の極性となるように極性反転回路２３を動作さ
せ、以後の動作を停止する。したがつて上記発光
管２６における発光は正常な輝点位置と形状を保
持しながら、安定した光出力の点灯状態を継続す
る。 The third embodiment of the present invention, as shown in FIG.
When the control section 21 puts the DC power supply section 22 and the starting high voltage generation circuit 25 into operation, and the arc tube 26 of the metal halide lamp lights up, the control section 21
The polarity reversing circuit 23 operates at a constant frequency in response to a signal from the arc tube 26, and the arc tube 26 performs low frequency alternating current lighting. After lighting, the filling in the arc tube 26 evaporates and emits light, so the light intensity gradually increases and finally reaches a steady state light intensity. lens 2
The light intensity of the arc tube 26 is monitored by the light receiver 28 via the light receiver 7, and when it is detected that the light intensity has reached a predetermined intensity lower than the light intensity in the steady state, a signal is sent to the control unit 21, and the control unit 21 is activated. The unit 21 operates the polarity reversing circuit 23 so that the electrode has a predetermined polarity, and stops the subsequent operation. Therefore, the light emitted from the arc tube 26 maintains a normal bright spot position and shape, and continues to be lit with stable light output.

上記各実施例における低周波交流点灯の停止
は、いずれも電極先端部に拡がつた正常な電極輝
点形状にある間に行われるため、放電プラズマの
位置が移動することなく、安定な光出力が継続し
て得られる。また、上記各実施例に示した以外
に、発光管の温度をモニタし、定常点灯の発光管
温度より低い所定温度に達した時点で、交流点灯
を停止し直流点灯に移行するように構成すること
もできる。 In each of the above embodiments, the low-frequency AC lighting is stopped while the electrode is in the normal bright spot shape spreading at the tip of the electrode, so the position of the discharge plasma does not move and stable light output is achieved. can be obtained continuously. In addition to the above-mentioned embodiments, the temperature of the arc tube is monitored, and when the temperature reaches a predetermined temperature lower than the temperature of the arc tube during steady lighting, AC lighting is stopped and DC lighting is started. You can also do that.

なお本発明の主旨は、高圧放電灯の点灯初期に
低周波の交流点灯を行い、電極輝点が正常形状に
ある間に上記低周波の交流点灯を停止させること
にある。したがつて、その後の点灯方式は必ずし
も定電流で駆動する直流点灯である必要はなく、
たとえばパルス点灯などであつても差支えない。 The gist of the present invention is to perform low-frequency AC lighting at the initial stage of lighting of the high-pressure discharge lamp, and to stop the low-frequency AC lighting while the electrode bright spot is in its normal shape. Therefore, the subsequent lighting method does not necessarily have to be direct current lighting driven by constant current.
For example, pulse lighting may be used.

〔発明の効果〕〔Effect of the invention〕

上記のように本発明による高圧放電灯点灯装置
は、点灯初期に低周波交流点灯を行い、定常時に
高周波交流点灯あるいは直流点灯を行う高圧放電
灯点灯装置において、高圧放電灯が定常状態に達
する前の所定時間後か、あるいは所定特性値の少
なくとも一つを検知後、低周波交流点灯から高周
波交流点灯あるいは直流点灯に切換える手段を備
えたことにより、常に正常な電極輝点が得られそ
の結果光出力が安定な点灯状態を得ることができ
る。したがつてメタルハライドランプなどの高圧
放電灯の信頼性が向上すると同時に、この種の光
源を用いた計測器の性能向上に効果がある。 As described above, the high-pressure discharge lamp lighting device according to the present invention performs low-frequency AC lighting at the initial stage of lighting, and performs high-frequency AC or DC lighting during steady state before the high-pressure discharge lamp reaches a steady state. By providing a means for switching from low-frequency AC lighting to high-frequency AC lighting or DC lighting after a predetermined period of time or after detecting at least one of the predetermined characteristic values, a normal electrode bright spot is always obtained, and as a result, the light A lighting state with stable output can be obtained. Therefore, the reliability of high-pressure discharge lamps such as metal halide lamps is improved, and at the same time, the performance of measuring instruments using this type of light source is improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明による高圧放電灯点灯装置の第
１実施例を示す構成図、第２図は本発明の第２実
施例を示す構成図、第３図は本発明の第３実施例
を示す構成図、第４図は高圧放電灯発光管と電極
の輝点状態を示す図で、ａは発光管、ｂは正常な
輝点、ｃは光出力が不安定となる微小な状態の輝
点をそれぞれ示している。 １１，２２……直流主電源部、１２……低周波
電源部、１３……リレー、１４……タイマ、１
５，２１……制御部、１６，２６……発光管、２
３……極性反転回路。 Fig. 1 is a block diagram showing a first embodiment of a high pressure discharge lamp lighting device according to the present invention, Fig. 2 is a block diagram showing a second embodiment of the present invention, and Fig. 3 is a block diagram showing a third embodiment of the present invention. Figure 4 is a diagram showing the bright spot state of the high-pressure discharge lamp arc tube and electrode, where a is the arc tube, b is a normal bright spot, and c is a tiny bright spot where the light output is unstable. Each point is shown. 11, 22...DC main power supply section, 12...Low frequency power supply section, 13...Relay, 14...Timer, 1
5, 21... control unit, 16, 26... arc tube, 2
3...Polarity inversion circuit.

Claims (1)

【特許請求の範囲】[Claims] １ 点灯初期に低周波交流点灯を行い、定常時に
高周波交流点灯あるいは直流点灯を行う高圧放電
灯点灯装置において、上記高圧放電灯が定常状態
に達する前に、低周波交流点灯から高周波交流点
灯あるいは直流点灯に切換える手段を設けたこと
を特徴とする高圧放電灯点灯装置。1. In a high-pressure discharge lamp lighting device that performs low-frequency AC lighting at the initial stage of lighting and high-frequency AC or DC lighting during steady state, the high-frequency AC or DC lighting changes from low-frequency AC lighting to high-frequency AC lighting or DC before the high-pressure discharge lamp reaches a steady state. A high-pressure discharge lamp lighting device characterized by being provided with a means for switching to lighting.
JP59231413A 1984-11-05 1984-11-05 High voltage discharge lamp lighting apparatus Granted JPS61110996A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP59231413A JPS61110996A (en) 1984-11-05 1984-11-05 High voltage discharge lamp lighting apparatus
DE19853539119 DE3539119A1 (en) 1984-11-05 1985-11-04 OPERATING CIRCUIT FOR A HIGH PRESSURE DISCHARGE LAMP
US06/795,268 US4803406A (en) 1984-11-05 1985-11-05 High-pressure discharge lamp operating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59231413A JPS61110996A (en) 1984-11-05 1984-11-05 High voltage discharge lamp lighting apparatus

Publications (2)

Publication Number Publication Date
JPS61110996A JPS61110996A (en) 1986-05-29
JPH0520879B2 true JPH0520879B2 (en) 1993-03-22

Family

ID=16923204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59231413A Granted JPS61110996A (en) 1984-11-05 1984-11-05 High voltage discharge lamp lighting apparatus

Country Status (3)

Country Link
US (1) US4803406A (en)
JP (1) JPS61110996A (en)
DE (1) DE3539119A1 (en)

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US5004953A (en) * 1989-06-30 1991-04-02 The Bodine Company Emergency lighting ballast for compact fluorescent lamps with integral starters
US4970437A (en) * 1989-07-10 1990-11-13 Motorola Lighting, Inc. Chopper for conventional ballast system
US5103138A (en) * 1990-04-26 1992-04-07 Orenstein Edward D Switching excitation supply for gas discharge tubes having means for eliminating the bubble effect
US5231333A (en) * 1990-11-14 1993-07-27 Neon Dynamics, Inc. Switching excitation supply for gas discharge tubes having means for eliminating the bubble effect
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JP3280540B2 (en) * 1995-05-12 2002-05-13 株式会社小糸製作所 Discharge lamp lighting circuit
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JP3893042B2 (en) * 2001-10-26 2007-03-14 松下電器産業株式会社 High pressure discharge lamp lighting method, lighting device, and high pressure discharge lamp device
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JP4700056B2 (en) 2004-08-06 2011-06-15 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Method and circuit arrangement for operating a discharge lamp
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Also Published As

Publication number Publication date
DE3539119A1 (en) 1986-05-07
JPS61110996A (en) 1986-05-29
DE3539119C2 (en) 1990-12-13
US4803406A (en) 1989-02-07

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